Analysis of economic efficiency in cocoa production in Ghana,
Aneani, F., Anchirinah V. M., Asamoah M., and Owusu-Ansah F.
, African Journal of Food, Agriculture, Nutrition and Development, 2011, Volume 11, Issue 1, (2011)
Analysis of factors affecting the technical efficiency of cocoa farmers in the Offinso District-Ashanti Region, Ghana,
Kyei, Leonard, Foli Gordon, and Ankoh Janet
, Am. J. Soc. Mgmt. Sci, 2011///, Volume 2, Issue 2, p.208 - 216, (2011)